or Celieuma (from sceAevo), in Antiquity, the command or call given by the chief oarsman to the rowers. This officer was called celeustes; and by the Romans porticusculus, panarius, or simply hortator. His duties are well described by Silius Italicus—

Medim stat margine puppis, Qui voce alternos nautarum temperat lectus, Et remis dictet sonitum, pariterque relatis Ad somitum plaudat resonantis cervula tonsis.